CVE-2024-53237— Bluetooth: fix use-after-free in device_for_each_child()
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2024-53237
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Bluetooth: fix use-after-free in device_for_each_child()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix use-after-free in device_for_each_child() Syzbot has reported the following KASAN splat: BUG: KASAN: slab-use-after-free in device_for_each_child+0x18f/0x1a0 Read of size 8 at addr ffff88801f605308 by task kbnepd bnep0/4980 CPU: 0 UID: 0 PID: 4980 Comm: kbnepd bnep0 Not tainted 6.12.0-rc4-00161-gae90f6a6170d #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x100/0x190 ? device_for_each_child+0x18f/0x1a0 print_report+0x13a/0x4cb ? __virt_addr_valid+0x5e/0x590 ? __phys_addr+0xc6/0x150 ? device_for_each_child+0x18f/0x1a0 kasan_report+0xda/0x110 ? device_for_each_child+0x18f/0x1a0 ? __pfx_dev_memalloc_noio+0x10/0x10 device_for_each_child+0x18f/0x1a0 ? __pfx_device_for_each_child+0x10/0x10 pm_runtime_set_memalloc_noio+0xf2/0x180 netdev_unregister_kobject+0x1ed/0x270 unregister_netdevice_many_notify+0x123c/0x1d80 ? __mutex_trylock_common+0xde/0x250 ? __pfx_unregister_netdevice_many_notify+0x10/0x10 ? trace_contention_end+0xe6/0x140 ? __mutex_lock+0x4e7/0x8f0 ? __pfx_lock_acquire.part.0+0x10/0x10 ? rcu_is_watching+0x12/0xc0 ? unregister_netdev+0x12/0x30 unregister_netdevice_queue+0x30d/0x3f0 ? __pfx_unregister_netdevice_queue+0x10/0x10 ? __pfx_down_write+0x10/0x10 unregister_netdev+0x1c/0x30 bnep_session+0x1fb3/0x2ab0 ? __pfx_bnep_session+0x10/0x10 ? __pfx_lock_release+0x10/0x10 ? __pfx_woken_wake_function+0x10/0x10 ? __kthread_parkme+0x132/0x200 ? __pfx_bnep_session+0x10/0x10 ? kthread+0x13a/0x370 ? __pfx_bnep_session+0x10/0x10 kthread+0x2b7/0x370 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x48/0x80 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 4974: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0xaa/0xb0 __kmalloc_noprof+0x1d1/0x440 hci_alloc_dev_priv+0x1d/0x2820 __vhci_create_device+0xef/0x7d0 vhci_write+0x2c7/0x480 vfs_write+0x6a0/0xfc0 ksys_write+0x12f/0x260 do_syscall_64+0xc7/0x250 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 4979: kasan_save_stack+0x30/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x4f/0x70 kfree+0x141/0x490 hci_release_dev+0x4d9/0x600 bt_host_release+0x6a/0xb0 device_release+0xa4/0x240 kobject_put+0x1ec/0x5a0 put_device+0x1f/0x30 vhci_release+0x81/0xf0 __fput+0x3f6/0xb30 task_work_run+0x151/0x250 do_exit+0xa79/0x2c30 do_group_exit+0xd5/0x2a0 get_signal+0x1fcd/0x2210 arch_do_signal_or_restart+0x93/0x780 syscall_exit_to_user_mode+0x140/0x290 do_syscall_64+0xd4/0x250 entry_SYSCALL_64_after_hwframe+0x77/0x7f In 'hci_conn_del_sysfs()', 'device_unregister()' may be called when an underlying (kobject) reference counter is greater than 1. This means that reparenting (happened when the device is actually freed) is delayed and, during that delay, parent controller device (hciX) may be deleted. Since the latter may create a dangling pointer to freed parent, avoid that scenario by reparenting to NULL explicitly.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于Bluetooth:device_for_each_child函数中的释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-53237
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2024-53237
请登录查看更多情报信息。
Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total
| CVE-2024-56607 | wifi: ath12k: fix atomic calls in ath12k_mac_op_set_bitrate_mask() | |
| CVE-2024-56594 | drm/amdgpu: set the right AMDGPU sg segment limitation | |
| CVE-2024-56595 | jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree | |
| CVE-2024-56596 | jfs: fix array-index-out-of-bounds in jfs_readdir | |
| CVE-2024-56597 | jfs: fix shift-out-of-bounds in dbSplit | |
| CVE-2024-56598 | jfs: array-index-out-of-bounds fix in dtReadFirst | |
| CVE-2024-56599 | wifi: ath10k: avoid NULL pointer error during sdio remove | |
| CVE-2024-56601 | net: inet: do not leave a dangling sk pointer in inet_create() | |
| CVE-2024-56600 | net: inet6: do not leave a dangling sk pointer in inet6_create() | |
| CVE-2024-56602 | net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() | |
| CVE-2024-56603 | net: af_can: do not leave a dangling sk pointer in can_create() | |
| CVE-2024-56604 | Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() | |
| CVE-2024-56605 | Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() | |
| CVE-2024-56606 | af_packet: avoid erroring out after sock_init_data() in packet_create() | |
| CVE-2024-56618 | pmdomain: imx: gpcv2: Adjust delay after power up handshake | |
| CVE-2024-56615 | bpf: fix OOB devmap writes when deleting elements | |
| CVE-2024-56616 | drm/dp_mst: Fix MST sideband message body length check | |
| CVE-2024-56617 | cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU | |
| CVE-2024-56614 | xsk: fix OOB map writes when deleting elements | |
| CVE-2024-56619 | nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() |
Showing top 20 of 221 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error - CVE-2026-43485
nouveau/gsp: drop WARN_ON in ACPI probes
Same vendor: Linux
- CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error - CVE-2026-43485
nouveau/gsp: drop WARN_ON in ACPI probes
V. Comments for CVE-2024-53237
No comments yet